Family name Subunnaroj (Subunnaroj 
) , in the world, is a very rare cognomen. The last name Subunnaroj is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Subunnaroj | Thailand |
Prim, Phanat, Sawalee, and Phuangthong